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Why did Mendeleev called his arrangement of elements the periodic table?
If the elements (which were discovered by his time) were organized in the increasing order of their atomic weight, they will exhibit an apparent periodicity of properties. It also had the ability to predict physical and chemical properties of some undiscovered elements.
What column contains elements whose electron configuration end with d4?
what column of the periodic table contains elements whose electron configurations end with d4
Does the identity of an uncharged atom change when it becomes an ion?
No. It is still that element with its unique number of protons (atomic number), but the numbers of electrons and protons are no longer equal and it will form an ionic bond with an ion of opposite charge. This will form an ionic compound, whose properties are different from the individual elements of which it is made, but the elements themselves do not change.
Molecule whose properties determined by sequence of amino acids?
Codon
How are atoms connected to an element?
Well the connection between atoms and elements is they are a compound... Usually compounds have quite different properties (e.g. colour, texture, taste, smell and density) from the elements whose atoms they contain... For example: the compound of water is a liquid at room temperature. Water contains atoms of the elements hydrogen and oxygen, which exist in air as colourless glass - quite different to water...
Does a period contain elements that are similar?
no. A period is a row of elements in the periodic table whose properties change gradually and predictably.
A Row of elements in the periodic table whose properties change gradually and predictability?
The rows on the Periodic table are called "periods" and the increasing atomic number across a period represents additions to the electron orbitals, which cause the properties manifested by individual elements (elements of the same group, or column, have similar properties).
How does the number of the outer energy level electrons relate to the properties of elements?
Elements whose atoms have the same number of outer electrons have similar properties..
How does the number of outer energy level electrons related to the properties of elements?
Elements whose atoms have the same number of outer electrons have similar properties..
What is an element whose physical properties are generally opposite to metals?
These chemical elements are nonmetals.
Why did Mendeleev called his arrangement of elements the periodic table?
If the elements (which were discovered by his time) were organized in the increasing order of their atomic weight, they will exhibit an apparent periodicity of properties. It also had the ability to predict physical and chemical properties of some undiscovered elements.
What is a substance produced when elements combine and whose properties are different?
That would be a compound. Combine the elements of hydrogen and oxygen, and get a compound (water) that is quite different from the two gasses you started with.
What is the anisotropy of properties?
the property of elements whose intensity depends upon the direction of layers of atoms.. example the cleavage plane,electrical conductivity...
Are metalloids precious metals?
No. They are elements (e.g., arsenic, antimony, or tin) whose properties are intermediate between those of metals and solid nonmetals or semiconductors.
What is the name of the two compounds whose elements properties change when they are combined?
Hydrogen (H2) and Oxygen (O2) have both 0. In the combined compound H20 or water (by combustion), H has (+1) and O has (-2). The biological relevance is seen in e.g. Knallgas-bacteria.
How light travels in a single medium in terms of speed and bending of light?
In a single homogeneous medium (electrical properties constant throughout the medium), the speed of light is constant ... although less than its speed in vacuum ... and the light does not bend. Bending (refraction) only occurs at the boundary between different media in which the speeds are different, or in a single medium whose properties change gradually (like the atmosphere).
Properties of a rectangle?
The essential properties are that a rectangle is a quadrilateral whose sides met at right angles. There are many other properties but all of them follow from this.
